Display screen with a graphical user interface



FIG. 1 is a front view of a first embodiment of a display screen with agraphical user interface; and,

FIG. 2 is a front view of a second embodiment of a display screen with agraphical user interface.

The broken lines show the display screen and form no part of the claimeddesign. The broken lines show portions of the graphical user interfaceand form no part of the claimed design.

CLAIM The ornamental design for a display screen with a graphical userinterface, as shown and described.